(For example, 40001 is always the first address in the 40000 block, and is equivalent to HR1 when ModiconTypedAddr1Offset is 0, or HR0 when ModiconTypedAddr1Offset is 1) This does not apply to addresses written as only numbers. 'Type specified' means addresses such as the HC1 and IR2 format. This is the length of time that this driver should wait for a reply from the PLC or RTU.Īpplies the offset for 'Type specified' Modbus addresses. Set the receiver time-out limit in seconds or fractions of a second. '31.0.0.0' See: Modbus Plus PLC Addressing. Note that, to create a valid expression for an address that contains non-numeric characters, you must enclose the address in quotation marks. This may be required on a network where the address varies depending on the workstation where the tag is running. By default, the PLC Address field is set to 1.Īn expression may be used to provide the address if needed. The station address of the Modicon programmable logic controller.

Open Modbus TCP Select to use the Modicon Open Modbus/TCP specification to receive Modbus protocol over Ethernet TCP/IP.

Embedded TCP/IP Select to use the Embedded TCP/IP protocol.

SA-85 (MB+) Select to use the Modbus Plus communications protocol via a Modicon SA-85 card.

Serial ASCII Select to use the ASCII mode of the Modbus serial communications standard.

Serial RTU Select to use the RTU mode of the Modbus serial communications standard.

Select the communication channel and protocol to use for this Modbus Compatible Device driver. Select the port tag, through which VTScada will communicate with this device. Weatherford Communications properties tab Used only by those who have created their own CHM-format context sensitive help files to accompany their application. If no Alarm Notification Area property is defined, all child tags will default to the Area property. Child tags that are not expected to generate alarms will inherit the Area property.

The Alarm Notification Area property is inherited by several of the Polling Driver children of this tag and then by any I/O or alarms below those. An Alarm Notification Area can be defined so that separate rosters can be defined within one region, or so that wells from several fields can use one roster. The area parameter is used to group similar tags together, such as all wells within a given region. or UWI Unique Well Identifier coordinates, but you are free to use whatever value makes sense for your system. In some jurisdictions, the description is set to the LSD Legal Subdivision address. Together, these parameters define a unique identifier for the equipment. The Area + Alarm Notification Area parameters are used for grouping, filtering, and roster control In a POC tag, the Name + Description parameters are used to identify the location of the well. The ID tab of every tag includes the same common elements: Name, Area, Description, and Help ID.

Modbus poll interval